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https://issues.apache.org/jira/browse/PIG-73?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Antonio Magnaghi updated PIG-73:
--------------------------------

    Attachment: diff.2008.01.24

This new patch (2008.01.24) obsoletes yesterday's.

Added more operators and arranged them into a preliminary taxonmy with the goal 
to support types.

Alan, please can you take a look and probably we should sync up because of work 
you are doing on types.

> Re-Design of Logical Plan
> -------------------------
>
>                 Key: PIG-73
>                 URL: https://issues.apache.org/jira/browse/PIG-73
>             Project: Pig
>          Issue Type: Improvement
>          Components: impl
>            Reporter: Antonio Magnaghi
>            Assignee: Antonio Magnaghi
>         Attachments: diff.2008.01.23, diff.2008.01.24
>
>
> I am opening this new bug to track a specific work item within the broader 
> context of improving Pig support for optimizations.
> See related items:
>    - PIG-50 in the jira
>    - the design spec at: http://wiki.apache.org/pig/PigExecutionModel
> In particular we want to remove from the logical plan those aspects that 
> directly relate to the *execution* stage of a plan, hence improving 
> decoupling. Currently EvalSpecs and Conds (and relative pipes) are tightly 
> coupled with logical operators.

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